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Title: Piezo-antiferromagnetic effect of sawtooth-like graphene nanoribbons

Abstract

A type of sawtooth-like graphene nanoribbon (SGNR) with piezo-antiferromagnetic effect is studied numerically. The ground state of the studied SGNR changes from nonmagnetic state to antiferromagnetic state with uniaxial strain. The changes of the spin-charge distributions during the stretching are investigated. The Hubbard model reveals that the hopping integrals between the π-orbitals of the carbon atoms are responsible to the piezo-antiferromagnetic effect. The study sheds light on the application of graphene-based structures to nanosensors and spintronic devices.

Authors:
; ; ; ;  [1];  [2]
  1. Institute of Physics, Chinese Academy of Sciences/Beijing National Laboratory for Condensed Matter Physics, Beijing 100190 (China)
  2. International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871 (China)
Publication Date:
OSTI Identifier:
22273383
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 20; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 77 NANOSCIENCE AND NANOTECHNOLOGY; ANTIFERROMAGNETISM; GRAPHENE; GROUND STATES; HUBBARD MODEL; NANOSTRUCTURES

Citation Formats

Zhao, Shangqian, Lu, Yan, Zhang, Yuchun, Lu, Wengang, E-mail: wglu@iphy.ac.cn, Liang, Wenjie, and Wang, Enge. Piezo-antiferromagnetic effect of sawtooth-like graphene nanoribbons. United States: N. p., 2014. Web. doi:10.1063/1.4878840.
Zhao, Shangqian, Lu, Yan, Zhang, Yuchun, Lu, Wengang, E-mail: wglu@iphy.ac.cn, Liang, Wenjie, & Wang, Enge. Piezo-antiferromagnetic effect of sawtooth-like graphene nanoribbons. United States. doi:10.1063/1.4878840.
Zhao, Shangqian, Lu, Yan, Zhang, Yuchun, Lu, Wengang, E-mail: wglu@iphy.ac.cn, Liang, Wenjie, and Wang, Enge. Mon . "Piezo-antiferromagnetic effect of sawtooth-like graphene nanoribbons". United States. doi:10.1063/1.4878840.
@article{osti_22273383,
title = {Piezo-antiferromagnetic effect of sawtooth-like graphene nanoribbons},
author = {Zhao, Shangqian and Lu, Yan and Zhang, Yuchun and Lu, Wengang, E-mail: wglu@iphy.ac.cn and Liang, Wenjie and Wang, Enge},
abstractNote = {A type of sawtooth-like graphene nanoribbon (SGNR) with piezo-antiferromagnetic effect is studied numerically. The ground state of the studied SGNR changes from nonmagnetic state to antiferromagnetic state with uniaxial strain. The changes of the spin-charge distributions during the stretching are investigated. The Hubbard model reveals that the hopping integrals between the π-orbitals of the carbon atoms are responsible to the piezo-antiferromagnetic effect. The study sheds light on the application of graphene-based structures to nanosensors and spintronic devices.},
doi = {10.1063/1.4878840},
journal = {Applied Physics Letters},
number = 20,
volume = 104,
place = {United States},
year = {Mon May 19 00:00:00 EDT 2014},
month = {Mon May 19 00:00:00 EDT 2014}
}